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1. 1) What does wing washout do for your aircraft?

   The angle-of-incidence of the root is higher than the angle-of-incidence at the wing tips. This causes the wing root to stall first, preserving aileron effectiveness during a stall.

   The angle-of-incidence of the root is higher than the angle-of-incidence at the wing tips. This causes the wing root to stall first, preserving aileron effectiveness during a stall.

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2. 2) What does wing dihedral do for your aircraft?

   If one of the wings is lowered, the aircraft initially starts slipping toward the lowered wing (considering no rudder inputs). This causes the low wing to fly at a higher angle-of-attack. At the same time, airflow strikes the side of the fuselage. This raises the airplane back toward a wings-level attitude.

   If one of the wings is lowered, the aircraft initially starts slipping toward the lowered wing (considering no rudder inputs). This causes the low wing to fly at a higher angle-of-attack. At the same time, airflow strikes the side of the fuselage. This raises the airplane back toward a wings-level attitude.

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3. 3) Elevator horns are used to...
   Mark Jones Jr.

   The elevator horns are located in front of the control hinge, so when they are deflected into the relative wind, they help deflect the elevator, reducing control pressures.

   The elevator horns are located in front of the control hinge, so when they are deflected into the relative wind, they help deflect the elevator, reducing control pressures.

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4. 4) Differential Frise ailerons will...

   When you bank the aircraft using the ailerons, the downward deflected aileron creates more drag than the upward deflected aileron, causing a yawing moment to occur in the opposite direction of the roll. To reduce this, Differential Frise ailerons expose their leading edge as they are deflected upwards. In addition, the upward aileron deflects more than the downward aileron. This helps equalize the drag created by the downward deflected aileron, reducing adverse yaw.

   When you bank the aircraft using the ailerons, the downward deflected aileron creates more drag than the upward deflected aileron, causing a yawing moment to occur in the opposite direction of the roll. To reduce this, Differential Frise ailerons expose their leading edge as they are deflected upwards. In addition, the upward aileron deflects more than the downward aileron. This helps equalize the drag created by the downward deflected aileron, reducing adverse yaw.

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5. 5) Swept wings...

   When you sweep the wings, the relative air "sees" less of the actual chordwise component and increases spanwise flow. This means that the air doesn't accelerate as quickly over the top of the airfoil. This essentially delays the critical Mach number, allowing you to fly at a higher Mach number, and delays supersonic flow across the wing.

   When you sweep the wings, the relative air "sees" less of the actual chordwise component and increases spanwise flow. This means that the air doesn't accelerate as quickly over the top of the airfoil. This essentially delays the critical Mach number, allowing you to fly at a higher Mach number, and delays supersonic flow across the wing.

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6. 6) Leading edge slats...
   egmboeingpilot

   When slats are deployed, they allow high pressure air from beneath the wing to pass through the slat, and over the top of the wing. This energizes the boundary layer, delaying airflow separation. This allows the aircraft to fly at slower speeds due to increased lift and reduced airflow separation.

   When slats are deployed, they allow high pressure air from beneath the wing to pass through the slat, and over the top of the wing. This energizes the boundary layer, delaying airflow separation. This allows the aircraft to fly at slower speeds due to increased lift and reduced airflow separation.

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